Ring twister



March 8, 1949.

s. ROAT-TA EI'AL RING TWISTER Filed lay 27, 1947 IHHNII INVENTORS EDOUMDkon rm AND A: BERI'PEYSJONNEAUX JZZZM/ ATTORKY.

Patented Mar. 8, 1949 RING TWISTED,

Edouard Roatta, Argues-la-Bataille, and Albert Peyssonneaux, Grenoble,France, assignors to Comptoir des Textiles Artiflciels, Paris, France,

a corporation of France May 27, 1947, Serial No. 750,739 In France July16, 1946 Application 1 Claim. 1

This invention relates to continuous twisting frames. More particularly,it relates to a new and improved ring for ring twisting frames.

Copending application for Ring twister, Serial No. 750,738, filed May2'7, 1947, discloses a ring twister wherein the ring on which thetraveller slides is rigidly secured in spaced relationship, as by aboss, to a cylindrical shield which, in use, is centered about anddisposed in spaced relationship to the bobbin on which the thread iswound. By such construction, the staining of the yarn, both during thetwistingwinding operation and when the thread broke, was substantiallyand materially reduced. In the preferred embodiment disclosed in saidapplication, there is also disclosed a traveller of a certainconstruction which is disposed in a vertical position on the outside ofthe ring.

An object of this invention is to provide a new and improved ringtwister.

Another object of this invention is to provide a ring twister whereinthe height of the ring can be adjusted relative to the height of theshield.

Other and additional objects will become apparent hereinafter.

The objects of the invention are accomplished, in general, by adjustablymounting the ring on and in spaced relationship to a cylindrical shieldwhich is adapted to be centered about and disposed in spacedrelationship with respect to the bobbin on which the thread is wound. Inthe preferred embodiment of the invention, the traveller is of the typeusually employed in the cotton industry and is slidably disposedhorizontally of the ring.

The invention will become clear from the following description whenconsidered in connection with the accompanying drawings forming a partof this specification, and wherein:

Figure 1 is a side elevation, partly in section, of one position of aring twisting frame embodying the principles of the invention; and

Figure 2 is a fragmentary section of a modified form of the ringtwister.

Referring now to the drawings wherein like reference numerals designatelike parts, the reference numeral l designates a spindle provided with apulley 2 which is driven in the known manner (not shown) and on which abobbin 3, on which the twisted thread is wound, is secured in the knownmanner.

As is disclosed in the drawings, a ring 4 is secured to the top of aring carrier 5. On the top of the ring 4, a traveller 6 is disposedhorizontally. The traveller 6 is of the type usually employed in thecotton industry and is formed by bending a metal wire into substantiallyC-shape.

The ring carrier 5 is adjustably secured to the bottom flange 8 of acylindrical shield l which is adapted to be centered about and disposedin spaced relationship to the bobbin 3. The shield together with theelements carried thereby are reciprocated axially of the bobbin in theknown manner.

As is shown in the drawings, the shield I is disposed in spacedrelationship to the ring 4 and carrier 5 whereby an annular chamber IIIis formed therebetween. The chamber Hi can contain lubricating oil, andthe ring 4 can be lubricated in any known manner, for example bycapillary action through the provision of appropriate holes necessarytherefor.

In the form shown in Figure 1, the height of the ring is adjusted bymeans of spacers 9 which are appropriately secured between the bottom ofthe ring carrier 5 and the flange 8. In practice, the spacers 9 areadjusted so that the top edge of the ring 4 will be slightly higher thanthe top edge of the shield 1, whereby the thread A passing from beneaththe traveller 6 will clear the top edge of the shield 1 and passradially onto the bobbin.

Instead of the adjusting means shown in Figure 1, the ring carrier 5',as shown in Figure 2, can be tapped on its inner periphery andadjustably secured on a threaded collar 8' formed integrally at thebottom of the shield 1'. relative rotation between the shield I and thering carrier 5', the relative heights of the ring 4 and shield i can beadjusted.

Since various means for adjusting the relative heights of the ring 4 andshield I will be apparent to a person skilled in the art, the inventionis not restricted to the specific form hereinbefore described.

The invention provides a ring for a ring twister whereby not only is thestaining of the thread prevented both during operation and when thethread breaks, but also the ring can be used upon appropriate adjustmentwith different sizes Thus, upon a 4 thread is wound, a ring disposed inspaced rela- REFERENCES CITED tionship to said shield and qarrying atraveller feeding thread to said bobbin, said shield being i ifl g ggfff are 9 in provided with an outwardly extending flange, and a ringcarrier carrying said ring and threaded 5 UNITED ES PATENTS onto saidflange for vertical adjustment with Number Name Date respect to saidshield. 588 120 High y Aug. 10, 1897 EDOUARD 2,248,024 Goodchild July 1,941

ALBERT PEYSSONNEAUX.

